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Units 1-3
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Exercise 3
Units 1-3
Units 4-6
Units 7-9
Units 10-12
Units 13-15
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Choose . . .
Exercise 1
Exercise 2
Exercise 3
Exercise 4
Exercise 5
Units 1-3:
Exercise 3
Choose the correct answer.
I
...
am
is
are
happy.
You
...
is
are
am
tired.
He
...
're
's
am
cold.
We
...
's
're
is
thirsty.
That
...
are
's
'm
Laura.